DevProCo – Film Dev Timer
Analog Photography
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
The precise development timer for analog photographers: guided sessions, voice control and agitation reminders for B&W, C-41, E-6 and RA-4.
DevProCo is a precise development process timer for analog photographers — whether you're developing B&W film, color negative (C-41), slide film (E-6), or darkroom prints (RA-4).
FEATURES
• Guided step-by-step development sessions with automatic agitation reminders
• Text-to-speech announces each step and agitation — keep your hands in the tank
• Hands-free voice control: say "next" to advance steps
• Automatic chemistry volume and dilution calculator
• Built-in process library with pre-configured recipes (Rodinal, DD-X, C-41, RA-4)
• Create and save your own custom processes
• Share processes with other DevProCo users via QR code
• Screen stays on during active sessions
• Supports English, German, Spanish and French
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Christoph Kretschmer, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Christoph Kretschmer
- Size
- 79.3 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
User-Generated Content
- In-App Purchases
Yes
- Premium $3.99
- Copyright
- © 2026 SynthScript Inh. Christoph Kretschmer